Just installed the jukebox protector this afternoon and the above instructions are spot on. Succinct and relevant. I will second the machine screws are a PIA to remove. 1/2" of loctite was threaded on all of the screws. So much so, one of the screws securing the scoop under the large plastic was nearly stripped with a hex driver trying to remove it.
Cliffy jukebox protector was a fantastic fit with the exception of 1/16" of steel extruding over the rear playfield impeding the jukebox panel from reinstalling. I'm assuming it's operator error, but a quick Dremel modification and all is well in the world.
On a sidenote, sent Cliffy a quick email asking for best practices for installing both protectors after reading what a pain installation was. Within 15 minutes, had a zipped file with step by step instructions that I will use for the bell protector next. Thanks for a great product Cliffy and exceptional customer service!